import math
a,b,c = map(int,input().split())
if math.gcd(a,math.gcd(b,c)) != 1:
    print("INF")
    exit()

M = 4*10**6+5
dp = [0]*M
dp[0] = 1
for i in range(3):
    for j in range(M):
        if j+a < M:
            dp[j+a] = max(dp[j],dp[j+a])
    a,b,c = b,c,a
print(M-sum(dp))